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00001 #ifndef PhysicsTools_Utilities_Cos_h 00002 #define PhysicsTools_Utilities_Cos_h 00003 00004 #include <cmath> 00005 00006 namespace funct { 00007 00008 template<typename T> 00009 struct CosStruct { 00010 CosStruct(const T& t) : _(t) { } 00011 inline double operator()() const { return ::cos(_()); } 00012 T _; 00013 }; 00014 00015 template<typename T> 00016 struct Cos { 00017 typedef CosStruct<T> type; 00018 inline static type compose(const T& t) { return type(t); } 00019 }; 00020 00021 template<typename T> 00022 inline typename Cos<T>::type cos(const T & t) { return Cos<T>::compose(t); } 00023 00024 } 00025 00026 #endif
1.7.3